You might be getting more than the usual number of "automatic out of office replies today" - that's because it's part of a campaign highlighting the gender pay gap - which stands at 9.2 percent between all men and all women.

That means from today women in New zealand are effectively working for free.

And for wāhine Māori and Pasifika - it's even worse, they've been unpaid since November the 4th.

Global Women Aotearoa's chair Theresa Gattung spoke with Charlotte Cook.